Pointless Circuits

Programming, Electronics and Breaking Things

Nov 16, 2017 - Comments - about

Ping Latency: 203 Days

It happened again, Pointless Circuits disappeared from the interwebs. Again the server was gone without prior notice. Then life happened and it took more than six months for us to get the site back online. We’re sorry for any inconvenience this caused. Pointless Circuits is now hosted on a more costly German VPS. We hope that reduces the risk of similar outtakes in the future.

Jul 16, 2016 - Comments - about

Pointless Circuits is back online!

Yesterday we found out that Pointless Circuits had been down for 15 days. It seems we trusted our hosting provider too much. Everything was fine until suddenly our accounts were gone, as were the servers. We’ve set up a new server (with a new hosting provider!) and will keep working to make sure such a major outtake won’t happen again.

Jan 11, 2016 - Comments - Chromebook SD card hard drive electronics

Soldering Exercise: Hardwiring a microSD card

For a very cheap hard drive extension, I decided to fit a 32gb microSD card into my Acer C720(p) Chromebook. As there exists no microSD to SD adapter short enough to not stick out of the Chromebook’s card slot, the only option I had was hardwiring the card. (I could obviously have bought a bigger M.2 SSD, but that would have been more expensive and well, where’s the fun in that?)

Sep 19, 2015 - Comments - AVR WebDev air dehumidifier

An online AVR bootloader generator

When finishing the air dehumidifier project, I first came into contact with FastBoot, a serial bootloader for AVR controllers with lots of cool features. It was quite a hassle to compile, so I set out to create an online tool to do just that. For anyone who doesn’t want worry much when in need of a firmware to program AVRs over uart: Meet fastboot-generator!

Mar 22, 2015 - Comments - Electronics NATOblaster

Natoblaster Part 3 - Voltage supply and LED-PWM

After a long time, a new post with an Update to the Natoblaster. After the casing is finished and the necessary Parts have arrived, it is now time to finish some of the innards of the device. For the amplifier itself, we will go for a off-the-shelf device, the voltage supply and PWM for the RGB-Leds will be homemade. For the power supply, we had the following necessitys: - 12V(from Car) or 15-30V(from battery) input - 12V output for the amplifier and LEDs - 5V for logic(currently not used) - switchable with a “special” power switch, AKA missile switch of F-104